Browse Prior Art Database

Disk Slap Preventive Mechanism

IP.com Disclosure Number: IPCOM000104560D
Original Publication Date: 1993-May-01
Included in the Prior Art Database: 2005-Mar-19
Document File: 2 page(s) / 31K

Publishing Venue

IBM

Related People

Aoyagi, A: AUTHOR [+3]

Abstract

Disclosed is an improvement method of non-operation shock resistance of hard disk drives.

This text was extracted from an ASCII text file.
This is the abbreviated version, containing approximately 100% of the total text.

Disk Slap Preventive Mechanism

      Disclosed is an improvement method of non-operation shock
resistance of hard disk drives.

      When shock is applied to hard disk drives, disks in hard disk
drives swing shown in Fig. 2(a).  This effect amplifies shock impact
magnitude, and finally sliders in hard disk drives damage the disk
surfaces.

      To solve the problem, peripheral edges of the disk are clamped
by clamping device 1 or 2.  The clamping device 1 applies a clamping
force in a vertical direction, while the clamping device 2 applies
the clamping force in a horizontal direction.

      Fig. 2(b) shows the effect of the clamping device.  Even if the
shock represented by Force is applied, the undesirable swing is
prevented.

      In this case, even if we apply shock to the hard disk drives,
disks don't swing so much shown in Fig. 2(b).  Therefore, the
amplification effect is much reduced and this improves non-operation
shock resistance remarkably.